Compared to other Sonic mobile games (Jump, Dash, Runner, 1, 2, Forces Speed Battle, SEGA Heroes, Racing series), Sonic Speed Sims still have the most "not simple" control.
Plus this kind of graphic is rare to see in SEGA mobile games :
Eeeh I wouldn't exactly say it's "non-simple". I mean the controls and physics itself is more fleshed out than Speed Battle or Dash... But that's because all that mostly comes as standard for Roblox Studio. Yes they put in the effort to make the gameplay feel a lot like Sonic Adventure and it's my most highest praise I have for the game... but that's about it.
I mean the two playable characters you start off with is Sonic and your Roblox avatar and you'll find they have the exact same gameplay.
And as you unlock Tails and Knuckles you'll find they cannot glide, fly or climb walls, it just uses the same gameplay as Sonic.
And while events tantalize you with unlocking new characters to play as, really they're just skins. It's the same gameplay of running, jumping and spin dashing.
As I brought up they didn't even bother putting in effort to make badniks or boos have an AI to function as enemies but serve no more as stationed targets to hit. It's possible to make AI with ease in Roblox Studio it's just... why bother y'know?